Hi Jack,
Certainly the SpeakerLink connection improves the performance of the DSP5200, as long as you have a SpeakerLink source or processor.
Meridian DSP speakers used to come with an MSR included, but if I recall correctly, the remote was omitted when they moved to SpeakerLink variants.
You will need a Meridian MSR remote to typeset the speakers. You can't do that from vMSR iPad application, although once typeset vMSR would work fine. (So perhaps whoever sells you them could make sure they're typeset correctly.)
Cheers,
Rick